Enameling oven



Jan.

A. MAEHLER ENAMELING OVEN Filed Feb. 17 1923 2 sheets-sheet 1 3m. 2U, 1925. mzss A. MEHLER ENAMELING OVEN Filed Feb. 17, 192.3 2 Sheets-Sheet 2 Je J5 l VQQQQQ@099960' v W Jg- Patented Jan. 1925.

UNITED STATES PATENT OFFICE.

Mmmm, or carence, ILLINOIS.

ENAMELING ovnN.

' Application mea February 17, 192:3. serial no. 619,869.

To all 'whom it may concern:

Be itknown that I, ARTHUR MAErImiR, a citizen of the United States of America, residin at Chicago, in the county of Cook and tate of Illinois, have invented certain new and useful Improvementsin Enameling Ovens, of which the following is a specification.

This invention relates to that type of drying or enameling apparatus in which an overhead endless carrier is used to carry the articles being treated in acontinuous manner to a dipping means to be coated, and through a drying chamber to be dried or enamelled, and more particularly to that form of such apparatus in. which alternating Jseries of dipping means and drying chambers are employed. The object of the present improvement is to provide a lformation and combination of parts in the upper portion of the apparatus adapted to conserve in an effective manner the heat within the drying or enameling chambers, and in which the returning portions of the endless carrier are maintained in a heated condition during a return travel to the feeding end of the apparatus, so as to abstract but a minimum amount of heat in their passage into and through the drying chamber or chambers and carryin the articles to be dried or enamelled, a l as will hereinafter more fully ap ear.

n the accompanying drawings Fig. 1, is a diagrammatic lsection of the entry portion of a drying or enameling apparatus embodying thel present improvements.

Fig. 2, is a companion view of other or discharge portion of the structure.

Fig. 3, is a detail transverse section through an oven section.

Like reference numerals indicate like parts i'n the different views. v

Thet pe of enameling apparatus shown in the rawings and to which the present improvements are applied, is one of. very general use in the arts, and comprises a 'plurality of elongated drying or baking ovens or chambers 1, supported above the floor of the building in horizontall separated relation.` .The ovens or cham ers 1 are of a rectangular form in cross section and are provided with downwardly inclined roof portions 2 at their respective ends. Within said ovens or chambers 1 and at the respective sides of the same, are arranged heating elements 3, usually of the l gaseous in a suspended manner the articles to be coated or enamelled. The endess carrier 6 is preferably of the type in which track wheels 7 travelling on rails 8 are connected together in pairs by transverse axles 9 from whiclithe articles are suspended, with the series of said pairs or units connected together in spaced relation by intermediate sectionsf chain or the like, and as usual in the present class of apparatus.

The zi zag or up and down longitudinal travel o tlie endless carrier 6, above referred to, is effected by the mounting of the endless carrier upon guide sheaves 10 disposed at dilferent points and levels in the apparatus, so that articles suspended from the, carrier will receive an angular downward movement into the dipping tanks 4,

like angular upward movements from said tanks, an angular downward movement past the drip receivingtanks 5, an angular upward movement into the drying ovens or chambers 1, a horizontal movement through said ovens or chambers, and 'an inclined downward movement out of said ovens or chambers towards an. adjacent dipping tank 4 or to the unloading platform 11 of the apparatus. The return path of the unloaded endless carrier is in a direct overhead line, usually above the roofs of the drying ovens or chambers 1 and other described parts.

' In connection with the drying or enameling apparatus above described, the present improvements involve detail arrangements and constructions as follows 12, designates a supplementary roof ar-` chamber 15 above the plurality of ovens or chambers 1 for movement `of the. returning series of side ducts 16, with the portion of the endless carrier 6 and materially aid in maintaining -said carrier portion in a warm condition lso that with a reentry of such carrier portion into the initial oven or chamber 1 a minimum absorption of heat :by the metallic material of the carrier is effected, with a resulting economy vin the heating operation ofthe apparatus. In the refer-red form ofthe invention, the cham er 15 received the products of combust-ion, heated vapors etc., :from the plufrality of ovens or chambers 1 through a or uptake stacks 17 connected to the roof 12 of said chamber. With such arrangement the chamber 15 and the portion of the endless carrier moving therein, are vmaintained in a heated condition in an eli'ective and economical manner. l

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent, is :e

1. In a series enamelingoven of the class herein described wherein' the articles are carried by a horizontally arranged vendless chimneys carrier through alternately arranged di ping stations and -drying chambers, t e combination of a series of drying chambers, an endless carrier associated with said chambers, and a longitudinal chamber arranged at the roof of said chambers and adapted to house the return run of the endless carrier. .2. In a series enameling oven of the class herein described. wherein the articles are carried by a horizontally arranged endless carrier through alternately arranged dipping stations 'and'drying chambers, the combinationV of a series of drying chambers,

an endless carrier associated with said cham-l bers, and a longitudinal chamber arranged at the roof of said chambers and adapted to house the return run of the endless carrier, said longitudinal chamber having communication .With the interior of said, chamber and with an uptake stack` Signed at Chicago, Illinois, of February, 1923.

RTHUR thisl 14th day 

